/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.opentoast.maven;

import java.util.jar.Attributes;
import java.util.jar.Manifest;

import org.apache.maven.plugin.MojoExecutionException;

/**
 * TODO Use SpringSource Bundlor to generate MANEFEST.MF file
 * 
 * @author <a href="mailto:jiwhiz@gmail.com">Yuan Ji</a>
 *
 */
public class BundleManifestWriter extends AbstractManifestWriter
{
    public final static String  BUNDLE_MANIFESTVERSION              = "Bundle-ManifestVersion";
    public final static String  BUNDLE_SYMBOLICNAME                 = "Bundle-SymbolicName";
    public final static String  BUNDLE_VERSION                      = "Bundle-Version";
    public final static String  BUNDLE_NAME                         = "Bundle-Name";
    public final static String  BUNDLE_DESCRIPTION                  = "Bundle-Description";
    public final static String  BUNDLE_VENDOR                       = "Bundle-Vendor";
    public final static String  BUNDLE_DOCURL                       = "Bundle-DocURL";

    /**
     * Create a very basic manifest file from project settings.
     * 
     * @return the newly created manifest
     */
    protected Manifest createNewManifest() throws MojoExecutionException
    {
        Manifest manifest = new Manifest();
        Attributes attributes = manifest.getMainAttributes();
        
        //set Jar manifest headers
        attributes.put( Attributes.Name.MANIFEST_VERSION, "1.0" );
        
        //set osgi manifest headers
        attributes.putValue(BUNDLE_MANIFESTVERSION, "2"); //OSGi 4.x
        attributes.putValue(BUNDLE_SYMBOLICNAME, project.getArtifactId());
        attributes.putValue(BUNDLE_VERSION, project.getVersion());
        attributes.putValue(BUNDLE_NAME, project.getName());
        
        if (project.getDescription() != null){
            attributes.putValue(BUNDLE_DESCRIPTION, project.getDescription());
        }
        if (project.getOrganization() != null){
            if (project.getOrganization().getName() != null){
                attributes.putValue(BUNDLE_VENDOR, project.getDescription());
            }
            if (project.getOrganization().getUrl() != null){
                attributes.putValue(BUNDLE_DOCURL, project.getDescription());
            }
        }
        
        return manifest;
    }

}
